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P2_1.m
资源名称：speech.rar [点击查看]
上传用户：ay_070428
上传日期：2014-12-04
资源大小：11427k
文件大小：1k
源码类别：
语音合成与识别
开发平台：
Matlab
- % Program P2_1 % Simulation of an M-point Moving Average Filter % Generate the input signal n = 0:100; s1 = cos(2*pi*0.05*n); % A low-frequency sinusoid s2 = cos(2*pi*0.47*n); % A high frequency sinusoid x = s1+s2; % Implementation of the moving average filter M = input('Desired length of the filter = '); num = ones(1,M); y = filter(num,1,x)/M; % Display the input and output signals clf; subplot(2,2,1); plot(n, s1); axis([0, 100, -2, 2]); xlabel('Time index n'); ylabel('Amplitude'); title('Signal #1'); subplot(2,2,2); plot(n, s2); axis([0, 100, -2, 2]); xlabel('Time index n'); ylabel('Amplitude'); title('Signal #2'); subplot(2,2,3); plot(n, x); axis([0, 100, -2, 2]); xlabel('Time index n'); ylabel('Amplitude'); title('Input Signal'); subplot(2,2,4); plot(n, y); axis([0, 100, -2, 2]); xlabel('Time index n'); ylabel('Amplitude'); title('Output Signal'); axis;
